New tool: "Edit ToC" that allows you to edit or create a Table of Contents easily in EPUB or AZW3 ebooks. Using the Edit ToC tool, you can easily re-arrange the entries in an existing Table of Contents, change their text and even change the location they point to by simply clicking the new location in the book. To use this tool, go to Preferences->Toolbar and add the Edit ToC tool to the main toolbar. Then simply select the books you want to be polished and click the Edit ToC button. This tool is based on a new codebase, so there may be bugs.